crash without bt on Dirk/Qt

[Henrik Brautaset Aronsen]

I had the same problem as Tomaz, and the patch fixes it.

H

Tomaz Canabrava wrote:
> confirmed, this simple patch fixed it on my Work PC.
>
> diff --git a/qt-gui.cpp b/qt-gui.cpp
> index 86731bb..5da1407 100644
> --- a/qt-gui.cpp
> +++ b/qt-gui.cpp
> @@ -1866,7 +1866,6 @@ QStringList MainWindow::fileNameFilters() const
>
>   void init_qt_ui(int *argcp, char ***argvp)
>   {
> -       application = new QApplication(*argcp, *argvp);
>          application->installTranslator(new Translator(application));
>          MainWindow *window = new MainWindow();
>          window->show();
> @@ -1874,6 +1873,7 @@ void init_qt_ui(int *argcp, char ***argvp)
>
>   void init_ui(int *argcp, char ***argvp)
>   {
> +       application = new QApplication(*argcp, *argvp);
>          GtkWidget *win;
>          GtkWidget *nb_page;
>          GtkWidget *dive_list;
>
>
> Dirk, can you apply this on your branch, pretty please?
>
>
> 2013/4/22 Tomaz Canabrava <tcanabrava at kde.org <mailto:tcanabrava at kde.org>>
>
>     People, I need help compiling and running the current Qt code on my
>     work desktop. While I do belive that on Dirk`s machine it works (
>     because it works on my home Desktop machine too ), I`m unable to
>     make it run on my  Work machine ( and I`m at work, without a thing
>     to do now, so hacking subsurface would be a nice thing. )
>
>     ![tomaz at tatooine subsurface]$ ./subsurface
>
>     (process:10326): Gtk-WARNING **: Locale not supported by C library.
>              Using the fallback 'C' locale.
>     Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 14:
>     reading configurations from ~/.fonts.conf is deprecated.
>     address of dive_table 0x6bfc90
>     Segmentation fault (core dumped)
>     ![tomaz at tatooine subsurface]$
>
>     Unfortunately, I didn`t managed to find the core-dump, so I runned
>     it with gtb, but to my surprise, it freezed, instead of crashing.
>     And the control didn`t returned to GDB, so I killed it with ctrl+c,
>     and got this bt:
>
>     address of dive_table 0x6bfc90
>     bt
>     ^C
>     Program received signal SIGINT, Interrupt.
>     0x00007ffff305016c in __lll_robust_lock_wait () from
>     /usr/lib/libpthread.so.0
>     (gdb) bt
>     #0  0x00007ffff305016c in __lll_robust_lock_wait () from
>     /usr/lib/libpthread.so.0
>     #1  0x00007ffff3047d18 in _L_robust_lock_126 () from
>     /usr/lib/libpthread.so.0
>     #2  0x00007ffff30478f2 in __pthread_mutex_lock_full () from
>     /usr/lib/libpthread.so.0
>     #3  0x00007ffff21cb557 in XrmQGetResource () from /usr/lib/libX11.so.6
>     #4  0x00007ffff21a7ca2 in XGetDefault () from /usr/lib/libX11.so.6
>     #5  0x00007ffff4d510af in ?? () from /usr/lib/libcairo.so.2
>     #6  0x00007ffff4d53490 in ?? () from /usr/lib/libcairo.so.2
>     #7  0x00007ffff4d259ab in cairo_surface_get_font_options () from
>     /usr/lib/libcairo.so.2
>     #8  0x00007ffff4ce563f in ?? () from /usr/lib/libcairo.so.2
>     #9  0x00007ffff4ce9428 in ?? () from /usr/lib/libcairo.so.2
>     #10 0x00007ffff4cdb4d3 in cairo_show_glyphs () from
>     /usr/lib/libcairo.so.2
>     #11 0x00007ffff51ffe33 in ?? () from /usr/lib/libpangocairo-1.0.so.0
>     #12 0x00007ffff5200144 in ?? () from /usr/lib/libpangocairo-1.0.so.0
>     #13 0x00007ffff430252f in pango_renderer_draw_glyphs () from
>     /usr/lib/libpango-1.0.so.0
>     #14 0x00007ffff52003a4 in pango_cairo_show_glyph_string () from
>     /usr/lib/libpangocairo-1.0.so.0
>     #15 0x00007ffff430252f in pango_renderer_draw_glyphs () from
>     /usr/lib/libpango-1.0.so.0
>     #16 0x00007ffff4302eb8 in pango_renderer_draw_layout_line () from
>     /usr/lib/libpango-1.0.so.0
>     #17 0x00007ffff4303215 in pango_renderer_draw_layout () from
>     /usr/lib/libpango-1.0.so.0
>     #18 0x00007ffff5432323 in gdk_draw_layout_with_colors () from
>     /usr/lib/libgdk-x11-2.0.so.0
>     #19 0x00007ffff54325f7 in gdk_draw_layout () from
>     /usr/lib/libgdk-x11-2.0.so.0
>     #20 0x00007ffff5864d31 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
>     #21 0x00007ffff57e09c5 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
>     #22 0x00007ffff57ec229 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
>     #23 0x00007ffff409c3d2 in g_closure_invoke () from
>     /usr/lib/libgobject-2.0.so.0
>     ---Type <return> to continue, or q <return> to quit---
>
>     It seems that the new delayed initialization of Qt can be killing
>     the GTK version of Subsurface on some systems.
>
>     Tomaz
>
>
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